MESON Chess Problem Database

Problem Display
PID: 226554 (1B6/1pp5/B4K2/N1P5/1P1k1p2/Rn6/b1nP1p2/1qR1N2Q w - - 0 1)

Pituk, Alexander

Tidskrift for Schack, 1946

1B6/1pp5/B4K2/N1P5/1P1k1p2/Rn6/b1nP1p2/1qR1N2Q

#2

11 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sxc2#
    • 1...Sca1
      • 2.Rc4#
    • 1...Sxb4
      • 2.Rc4#
    • 1...Sba1
      • 2.Rd3#
    • 1...Sxd2
      • 2.Rd3#
    • 1...Sxa5
      • 2.Rd3#
    • 1...b6
      • 2.Sc6#
    • 1...c6
      • 2.Be5#
  • Keys
    • 1.Bxb7!
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Sxe1
        • 2.Qd5#
      • 1...Sxa3
        • 2.Sc6#
        • 2.Qd5#
      • 1...Sxb4
        • 2.Rc4#
      • 1...Sxc1
        • 2.Sf3#
        • 2.Qe4#
      • 1...Sxd2
        • 2.Rd3#
      • 1...Sxa5
        • 2.Qe4#
      • 1...Sxc5
        • 2.Sf3#
      • 1...fxe1Q
        • 2.Qd5#
      • 1...fxe1R
        • 2.Qd5#
      • 1...Sca1
        • 2.Sc6#
        • 2.Rc4#
        • 2.Qd5#
      • 1...Se3
        • 2.Sc6#
      • 1...Sba1
        • 2.Sf3#
        • 2.Rd3#
        • 2.Qe4#
      • 1...f3
        • 2.Qh4#
      • 1...c6
        • 2.Be5#

There are these versions: 229397

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • Q(a);N_GUARD::S(B),XS(c)
    • S(c);OGATE::R1(A)
    • S(c);OGATE,XP(F)::R1(A)
    • S(e);OGATE::R1(E)
    • S(e);OGATE,XP(D)::R1(E)
    • S(e);OGATE,XS(G)::R1(E)
    • P(h);N_GUARD::S(G)
    • P(i);OGATE::B(K)
  • Actual
    • B(I);XP(h)
    • Threat
      • DUALS(2)
    • Vars
      • S(c);XS(B)::QAR1(C)
      • S(c);OGATE,XP(F)::R1(A)
      • S(e);OGATE,XP(D)::R1(E)
      • S(e);XS(G)::QAR1(C)
      • S(e);XP(H)::S(B)
      • P(d);XS(B)::QAR1(C)
      • S(c);::S(G)
      • P(g);OGATEB::QAR(C)
      • P(i);OGATE::B(K)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).